Jones_qing的专栏

StringCharacterIterator iterator = new StringCharacterIterator("hello world"); //迭代元素 while (iterator.current() != StringCharacterIterator.DONE) { System.out.print(iterator.current());

import java.text.DateFormat;import java.text.SimpleDateFormat;import java.util.Date;public class SimpleDate { public static void main(String[] args) throws Exception { /* * 风格 * FUL

//获取时间对象 String string = (new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date())); System.out.println(string); Calendar calendar = Calendar.getInstance(); //获取年 System.out.prin